@misc{indiciae09dc1a6e225d,
  title = {Control theory and multiple placebo effects.},
  author = {M P Jensen and P Karoly},
  doi = {10.2190/cjjf-65m6-xllp-e4pc},
  url = {https://pubmed.ncbi.nlm.nih.gov/4055251/},
  note = {Source identifier: 4055251}
}